If Possible, Find AB $A = \left[ \begin{array} { c } - 7 \\8\end{array} \right] , B = \left[ \begin{array} { c c } - 9 & 9 \\6 & - 2 \\1 & - 8\end{array} \right]$

Multiple Choice

If possible, find AB. $A = \left[ \begin{array} { c } - 7 \\8\end{array} \right] , B = \left[ \begin{array} { c c } - 9 & 9 \\6 & - 2 \\1 & - 8\end{array} \right]$

A) $\left[ \begin{array} { l l l } - 9 & - 26 & 57\end{array} \right]$
B) $\left[ \begin{array} { c } - 9 \\- 26 \\57\end{array} \right]$
C) $\left[ \begin{array} { c c } 63 & 72 \\- 42 & - 16 \\- 7 & - 64\end{array} \right]$
D) $\left[ \begin{array} { c } 135 \\- 58 \\- 71\end{array} \right]$
E) not possible